US3275207A - Method of and apparatus for cutting glass - Google Patents

Method of and apparatus for cutting glass Download PDF

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Publication number
US3275207A
US3275207A US448134A US44813465A US3275207A US 3275207 A US3275207 A US 3275207A US 448134 A US448134 A US 448134A US 44813465 A US44813465 A US 44813465A US 3275207 A US3275207 A US 3275207A
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United States
Prior art keywords
ribbon
rollers
band
plane
glass
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Expired - Lifetime
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US448134A
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English (en)
Inventor
Preudhomme Jean
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie de Saint Gobain SA
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Compagnie de Saint Gobain SA
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00Severing cooled glass
    • C03B33/07Cutting armoured, multi-layered, coated or laminated, glass products
    • C03B33/072Armoured glass, i.e. comprising reinforcement
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00Severing by tearing or breaking
    • Y10T225/10Methods
    • Y10T225/12With preliminary weakening
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00Severing by tearing or breaking
    • Y10T225/30Breaking or tearing apparatus
    • Y10T225/307Combined with preliminary weakener or with nonbreaking cutter
    • Y10T225/321Preliminary weakener
    • Y10T225/325With means to apply moment of force to weakened work
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00Severing by tearing or breaking
    • Y10T225/30Breaking or tearing apparatus
    • Y10T225/329Plural breakers

Definitions

  • This invention relates generally to the severing along predetermined lines scored therein, of armored or reinforced glass and, more particularly, to the severing of side bands from a ribbon of reinforced glass while moving continuously in the direction of its length.
  • Sheet glass is customarily produced in the form of a ribbon of indeterminate length.
  • the glass is drawn from a melting tank and conveyed continuously horizontally past stations where it is rolled, ground, polished, tempered and annealed and finally cut into sections or panels of commercially required sizes.
  • the ribbon must be cut along two parallel lines each closely adjacent a respective side edge thereof, and the side bands delineated thereby between each line and the contiguous edge removed and discarded, leaving a central band of saleable glass having true, smooth and even edges.
  • this severing of side bands is rendered more difficult because even although the glass is broken along the aforesaid two lines, each side band is retained attached to the ribbon by the metal filaments of the reinforcement; and these must be broken or sheared before the side bands can be completely removed.
  • the invention has for a principal object the provision of a method of and an apparatus for the automatic breaking of the metallic reinforcement of a ribbon or armored glass while continuously in motion under conditions where the ribbon has been previously scored along lines delineating side bands and broken along those lines thus leaving the bands attached to the ribbon solely by the filaments of the reinforcement.
  • a further object is the provision of a method and apparatus by which reinforced sheet glass in the form of a continuous fiat ribbon moving in the direction of its length, has the usual side bands removed continuously as the ribbon passes a selected station.
  • Yet another object is the provision of an apparatus which effects removal of the side bands smoothly and efficiently, leaving the central band of saleable glass with smooth and uniform side edges.
  • Another object is the provision of an apparatus which is versatile in use and readily adapted and adjusted to a wide range of widths and thicknesses of ribbons of glass, as well as to various kinds of strengths of reinforcement.
  • Still another object is the provision of an apparatus of the kind described, which provides for easy collection and removal of the side band material removed.
  • FIGURE 1 is a perspective view showing the portion 3,275,207 Patented Sept. 27, 1966 of the machine for breaking away the metallic reinforcement of a side band along one edge of a ribbon of glass under motion in the direction of its length, parts being broken away to expose details of construction;
  • FIGURE 2 is an elevational view looking in the direction of arrow 1, FIGURE 3, of a form of the invention corresponding to FIGURE 1, wherein the scored line along one side edge of the ribbon is opened at a first station and broken away at a second and subsequent station;
  • FIGURE 3 is an elevational view looking from right to left, FIGURE 2;
  • FIGURE 4 is a detail view showing in side elevation one of the ramps or inclined planes used for breaking the filaments of the metallic reinforcement;
  • FIGURE 4a is a cross section taken in a plane identified by line 4a4a, FIGURE 4;
  • FIGURE 5 is a view in side elevation showing the arrangement and relative positions of the ramp and several rollers.
  • FIGURE 6 is a plan view corresponding to FIGURE 5.
  • FIGURE 1 shows the portion of the machine for breaking away one side band only, of the ribbon of glass 1 moving continuously in the direction of arrow 1. It will be understood that a band is removed from and along each side edge of the ribbon, that FIGURE 1 shows only that part of the machine for separating the band along the right side edge of the ribbon, and that the part for severing the left side band is an allochiral duplicate of the one shown.
  • the machine includes means for first opening the longitudinal score line along each side edge, the breaking of the glass along these lines, and the breaking of the metallic filaments of the reinforcement.
  • the devices for effecting these functions operate in close sequence and cooperation so that a description of each is necessary to a full understanding of the invention.
  • the frame of the machine comprises four vertical legs or posts. Two of these, 19, 19', appear upon FIGURES 1 and 3. The remaining two are not shown but are located at the other end of the frame from that shown in FIGURE 1.
  • the legs are shown in the form of I-beams.
  • Post or leg 19 and its mate, not shown, carry a horizontal channel track 16 fixed to their upper ends.
  • post 19 and its mate, not shown carry a second track 16', FIGURES 1 and 3.
  • the tracks are rigidly connected in parallel spaced relation, to extend transversely over and across the ribbon, by a pair of duplicate built-up girders or beams one of which is identified at 18, FIG- URES 1, 2 and 3.
  • the tracks 16, 16' support for guided horizontal translational adjustment therealong, a carrier generally identified at 1512, FIGURE 1.
  • This carrier comprises laterallyspaced vertical parallel plates 15, 15', left and right respectively, rigidly interconnected at their bottom edges by a rectangular frame 14, and at their top portions by a single transverse channel beam 15b.
  • Plate 15 is mostly broken away in FIGURE 1 to reveal parts otherwise obscured thereby. Both plates are notched as at 150, FIG- URE 1, for plate 15, so that the carrier may be transversely adjusted throughout an adequate range with respect to the ribbon of glass.
  • plate 15' carries a pair of spaced rollers 17'.
  • plate 15 mounts a second pair of rollers 17.
  • Each pair is mounted on its respective track, 16, 16 so that the carrier may be horizontally moved in a direction normal to the direction of travel of the ribbon.
  • Auxiliary rollers such as 17a, 17b, carried by the respective plates hold the supporting rollers to their tracks and prevent elevation of the carrier therefrom.
  • a shaft 21 extends over and transversely across the ribbon and is journaled at its central portion in a bearing 21a carried by beam 22.
  • the ends of this beam are rigidly fixed to the central portions of tracks 16, 16.
  • the shaft and bearing are so related and constructed that, while the shaft may freely rotate, it is fixed .against axial movement in and with respect to the hearing.
  • the ends of the shaft are threaded with threads of opposite hand, as indicated for example at 21b, FIGURE 2, and which engage a threaded sleeve 21c fixed with cross beam 151).
  • a handwheel 20 is fixed to the extreme right end of the shaft as viewed upon FIGURE 2.
  • Frame 14 has a plate 40 fixed thereto at its lefthand side as viewed upon FIGURE 1.
  • This plate carries tracks 40, 4d, in horizontally spaced relation, to receive between them as base 4b for guided translation.
  • a vertical guide 4a is integrally connected with and upstands from the base and is embraced by a support 4 on which are journaled two rollers 2 and 3, spaced in the direction of travel of the ribbon.
  • the support is vertically adjustable on and along guide 4a by turning of a handwheel 5 fixed with a shaft 5a and having one of two :bevel pinions 6 fixed to its end.
  • the other pinion is fixed to a vertical shaft which threadedly engages an aperture in support 4 so that, in an obvious way, turning of handwheel 5 in one direction or the other effects a corresponding vertical adjustment of support 4 and rollers 2 and 3 carried thereby.
  • Base 4b is connected with a threaded shaft 7a having handwheel 7 fixed to its outer end so that by turning of wheel 7 the entire assembly including base, guide, rollers 2, 3, pinions 6 and shaft 5a are horizontally translated in the direction of shaft 7a.
  • the shaft is journaled at its forward end in a bearing carried by frame 14.
  • rollers 2 and 3 are adjustable vertically and horizontally transversely of the contiguous edge of ribbon 1, moving in the direction of arrow f.
  • a second frame 13, including horizontal plate 13a is fixed at its respective ends to plates 15, 15' and serves as an additional rigid interconnection between them.
  • a pair of tracks 9b, 9c are fixed to plate 13a in spaced parallel relation and mount between them a unitary base and guide 9a depending through a slot in the plate.
  • a roller support 9 is mounted on 9a for guided vertical translation therealong. This support has a single presser roller 8 journaled on it, with its axis of rotation parallel to the axes of roller 2, 3. Vertical adjustment of the presser roller is effected by turning of handwheel 10 carried by a vertical shaft journaled in the aforesaid base and threadedly engaging support 9.
  • frame 14 supports at its central part, a horizontal plate 34a.
  • the plate is fixed to and across the frame and has a pair of tracks 34b, 34c secured in spaced parallel relation to its top surface. These tracks receive between them, and guide, a support 34d including a vertical guide on and along which a block 34 is slidable.
  • a horizontal shaft 34c is journaled at its outer end in a bearing fixed to plate 34a, and carries a handwheel 36a. The other end of the shaft is threaded and engages a threaded aperture in the base of support 34a. Since the bearing is constructed to prevent axial movement of the shaft, turning of handwheel 36a effects translation of block 34 and all parts carried thereby, along tracks 34b, 34c.
  • Means are also provided for effecting precise fine vertical adjustments of block 34 on and along guide 34d.
  • This means may be identical with those previously described for the vertical adjustment of support 4 on and along guide 411. Consequently it is deemed sufficient to identify handwheel 35 and its shaft 35a. Turning of this handwheel in one direction or the other effects a corresponding vertical adjustment of block 34 and a ramp 23 fixed thereto.
  • the ramp 23 forms an important feature of the invention and is shown upon FIGURES l, 2, 3, 4, 4a and 5.
  • the ramp has a first flat surface 29 of relatively large acute angle with respect to its planar base surface 23a. This surface merges along a line 31, into a second flat surface 33 of smaller angle with respect to base surface 23a.
  • Dot-dash line 32 indicates the normal position of the lower surface of the ribbon of glass or, more specifically, the side band thereof to be severed, as it approaches the ramp.
  • FIGURES 4 and 4a it is noted that the upper surface of the ramp from line 31, slopes transversely outwardly and is bounded by two laterally-spaced, non-parallel lines 36 and 32b of which the latter may be substantially in coincidence with the lower surface of the ribbon as indicated at 32.
  • the surface described is thus substantially but not precisely planar.
  • FIGURE 2 shows that in operation, ramp 23 is adjusted to be directly beneath the side band 12 to be severed.
  • roller 24 is journaled on a horizontal axis on support 36.
  • This support in turn, embraces a vertical guide which includes a base slidably guided by and between a pair of tracks fixed in spaced relation to the under side of plate 13a. Since the mounting of roller 24 is essentially like that previously described in detail for rollers 2, 3, it is deemed unnecessary to repeat the description. Sufiice it to say that referring particularly to FIGURE 3, roller 24 is adjusted vertically by actuation of handwheel 38, and horizontally by handwheel 40.
  • Ramp roller 25 is similarly mounted and journaled on a support 37, FIGURES l and 3. This support is likewise carried by and beneath plate 13a, for vertical adjustment, and for horizontal adjustment in the direction normal to the edge of the ribbon.
  • the mounting may be like those previously described, as for rollers 2, 3, so that it is sufficient to explain that vertical adjustment of roller 25 is effected by turning of handwheel 39, and horizontal adjustment by handwheel 41.
  • FIGURE 5 shows that in normal operating position, roller 24 is over the upstream end of ramp 23 while roller 25 is located between line 31 and the downstream end of the ramp.
  • FIGURE 6 shows the lateral positions of these rollers, wherein roller 24 lies over band 12 and projects somewhat outwardly of the outer edge thereof.
  • Roller 25 is similarly positioned but, by means not shown, is mounted for an additional adjustment pivotally about a vertical axis passing centrally through its axis of rotation, so that it may be adjustably fixed in the position about as shown by the dotted lines upon FIGURE 6, wherein in its rotation in frictional contact with band 12, it exerts thereon a thrust tending to separate the band laterally from the ribbon.
  • rollers 26, 27 and 28 preferably of frusto-conical form are also of metal covered or rimmed with synthetic plastic material. These rollers are journaled on a single or common support 42 which, like supports 36 and 37, is carried by and beneath plate 13a, through the intermediary of a base mounted for guided translation by and between a pair of spaced parallel tracks extending horizontally in a direction normal to the edge of the ribbon.
  • support 42 is adjusted vertically by actuation of handwheel 43, to correspondingly move all rollers 26, 27, 28 as a unit.
  • the base carrying support 42 is adjusted horizontally along and between its tracks, by actuation of handwheel 44. See FIGURES 1, 2 and 3.
  • rollers 26, 27, 28 are positioned in contiguous vertically coplanar relation just inside line 51, and that roller 26 is substantially coaxial with roller 24 and hence does not appear upon FIGURE 5.
  • rollers 26, 27, 28 conjointly extend over a longitudinal distance about equal to the corresponding dimension of ramp 23.
  • a single supplemental roller 45 is located downstream from the ramp.
  • This roller may be cylindrical and of the same construction and size as 24 and 25.
  • roller 45 is mounted for vertical and horizontal adjustments, by a construction similar in all respects to that previously described for rollers 2, 3.
  • plate or base 47 is mounted for guided horizontal translation by and between a pair of spaced parallel tracks secured to the underside of plate 13a and includes a vertical guide on and along which a support 46 is guided in vertical adjustment and on which the roller 45 is journaled.
  • Vertical adjustment of the roller is effected in the usual way, by turning of handwheel 48, and horizontal adjustment in the direction normal to the edge of the ribbon, by turning of handwheel 49. Since the mechanism for efiecting these adjustments may be like those previously described, particularly for rollers 2 and 3, it is unnecessary to repeat the description.
  • FIGURE 2 is indicated one of the rollers of the conveyor by which the ribbon is continuously moved in the direction of its length.
  • Posts such as 53 support horizontal beams on which bearings for the conveyor rollers are fixed.
  • Handwheel is turned to correspondingly equally and oppositely transversely translate the two carriers of which 15a only is shown, until each of the two sets of rollers such as 2, 3, 26, 27 and 28 lie with their larger diameters just inside a corresponding line such as 51, and the set of rollers 8, 24, and 45 are just outside this line, all as depicted upon FIGURES 2 and 6-.
  • handwheels 5 and 11 are also available to effect a very fine and precise adjustment of the horizontal positions of rollers 2, 3 and 8 with respect to each other and to line 51.
  • rollers 24 and 25 relatively to the line may be made by handwheels 40 and 41, respectively, and of rollers 26, 27 and 28 as a unit, by handwheel 44.
  • Vertical adjustments of the several rollers, or group of rollers in the case of 26, 27, 28, may be made by respective handwheels 5, 10, 38, 43 and 48.
  • Each of the handwheels 7, 10, 36a, 43 etc. is shown equipped with a locking wheel A. Since all are alike in construction and function they have been identified by the same reference character. Thus, referring to FIGURE 1 and to wheel 7, its threaded shaft 7a has locking wheel A threaded thereon adjacent its forward bearing. Turning of wheel A against this hearing binds the shaft therein and, in an obvious way, releasably locks it in adjusted position. All other wheels identified by A, operate in a similar way to preserve a selected precise adjustment of the corresponding roller or rollers.
  • rollers 26 27, 28 are in contact with the ribbon and maintain it in its own plane of translation during opening of the fissure and breaking of the metallic reinforcement.
  • ramp 23 is located beneath band 12 and roller 24, 25 are positioned over the band. The ramp is adjusted in elevation in such a way that the lower surface 32 of band 12 contacts the ramp substantially at or along point or line of intersection 31 of the two surfaces 29 and 30, as shown upon FIG- URE 4.
  • roller 25 is adjusted in elevation in such a way that it has a separation from the ramp equal to the thickness of band 12.
  • Roller 45 is adjusted in elevation so as to curve or deflect the side band 12 downwardly toward and into hopper 52.
  • an apparatus for severing a band of glass from a ribbon of reinforced glass moving continuously in its own plane, in the direction of its length, and having scored therein a line in its upper surface, parallel with said direction means at a first stattion supporting the ribbon adjacent said line, while exerting a downward force on the band to break the glass along said line in passing said first station, and means at a second station downstream from said first station to engage the top surface of the ribbon adjacent said line, while simultaneously elevating said band out of the plane of the ribbon, to break the reinforcement holding the band to the ribbon.
  • said second means comprising a fixed ramp having an upper band-contacting surface diverging upwardly with respect to the plane of the ribbon in the downstream direction and in intersecting relation with said plane.
  • said upper ramp surface also having a slope laterally downwardly and outwardly away from the ribbon.
  • said ra mp comprising a substantially planar surface, and means mounting said ramp with said surface intersecting the plane of the ribbon and making an acute angle with said plane outwardly along said direction.
  • a carrier for continuously severing a side band of glass from a ribbon of reinforced glass moving horizontally in its own plane and in the direction of its length
  • first and second rollers first means journaling said first and second rollers on said carrier in contiguous relation (for rotation on parallel horizontally coplanar axes normal to said direction and for vertical and horizontal adjustments as a unit
  • a third roller second means journaling said third roller on said carrier for rotation on a horizontal axis parallel with and above said first roller
  • a ramp third means mounting said ramp on said carrier downstream from said first, second and third rollers, for vertical and horizontal adjustments, and in the vertical plane of said third roller, said ramp having an upper surface intersected by a horizontal plane level with the tops of said first and second rollers, a plurality of contiguous rollers
  • said first means comprising a common support on which said first and second rollers are journaled, a vertical guide and base mounting said support for vertical adjustment therealong, a pair of horizontal parallel tracks fixed with said carrier and slidably receiving and guiding said base between them for horizontal adjustment, manually operable means to adjust said base and guide along said tracks, and manually operable means to adjust said support on and along said vertical guide.
  • a conveyor for so moving the ribbon, a frame including a pair of parallel tracks fixed horizontally across said conveyor and spaced in said direction, first and second carriers each mounted on said tracks for movement therealong at a respective side of said conveyor, means interconnecting said carriers and operable to equally and oppositely adjust the same along said tracks with respect to the center line of said conveyor, means carried by each said carrier to engage and hold the ribbon on said conveyor in its own plane, roller means at a first location on each said carrier for exerting a downward force on the respective side bands in passing said first location, and means carried by each said carrier at a second and downstream location and operable to positively elevate each respective side band out of said plane.
  • said last-named means comprising first and second ramps each having an inclined upper surface intersecting and diverging upwardly at an acute angle from said plane in the direction of travel of a ribbon on said conveyor.
  • a fixed frame horizontally disposed first and second spaced parallel tracks carried .by said frame, a carrier mounted on said tracks for guided translation therealong, a ramp, means mounting said ramp on said carrier for vertical adjustment and for horizontal adjustment parallel with said tracks, a pair of rollers, means mounting each said roller of said pair on said carrier, over and adjacent said ramp and for individual vertical adjustment and for limited adjustment parallel with said tracks, a plurality of rollers, and means mounting said plurality of rollers on said carrier for vertical adjustment as a unit and for horizontal adjustment parallel with said tracks, the axes of rotation of all said rollers being substantially horizontal, said plurality of rollers being horizontally offset from said pair or rollers and adjacent said ramp.
  • a ramp mounted with its upper planar surface intersecting and diverging upwardly from said plane at an acute angle in said direction, first and second rollers, means mounting said first and second rollers over, adjacent, and in vertical registration with said ramp, a plurality of rollers, and means mounting said plurality of rollers in a common plane offset from the common plane of said ramp and said first and second rollers, the axes of rotation of all said rollers being horizontal.
  • said second roller being additionally adjustable for pivoting about a vertical axis through its axis of rotation.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Belt Conveyors (AREA)
US448134A 1964-04-21 1965-04-14 Method of and apparatus for cutting glass Expired - Lifetime US3275207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR971693A FR1401341A (fr) 1964-04-21 1964-04-21 Procédé et dispositif pour la rupture du treillis métallique le long des bandes d'un ruban de verre armé

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US3275207A true US3275207A (en) 1966-09-27

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US448134A Expired - Lifetime US3275207A (en) 1964-04-21 1965-04-14 Method of and apparatus for cutting glass

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US (1) US3275207A (xx)
BE (1) BE662651A (xx)
DE (1) DE1496440B1 (xx)
ES (1) ES312084A1 (xx)
FR (1) FR1401341A (xx)
GB (1) GB1086219A (xx)
LU (1) LU48429A1 (xx)
NL (1) NL6505033A (xx)
SE (1) SE310539B (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4049167A (en) * 1974-04-25 1977-09-20 Saint-Gobain Industries Cutting of glass
US4076159A (en) * 1975-10-29 1978-02-28 Pilkington Brothers Limited Breaking flat glass into cullet
US4136807A (en) * 1976-05-26 1979-01-30 Ppg Industries, Inc. Method of opening score lines in glass sheets
US20170334761A1 (en) * 2014-11-19 2017-11-23 Bando Kiko Co., Ltd. Glass plate bend-breaking method and bend-breaking apparatus thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1222060B (it) * 1987-07-17 1990-08-31 Vetreria Lorenzo Snc Di Giorgi Apparecchiatura automatica particolarmente studiata per il taglio di lastre di vetro singole e doppie

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1895779A (en) * 1929-07-10 1933-01-31 Mississippi Glass Co Method and apparatus for cross cutting wire glass
US1930582A (en) * 1930-08-16 1933-10-17 Pittsburgh Plate Glass Co Apparatus for cutting glass sheets
US1932149A (en) * 1931-08-06 1933-10-24 Pilkington Brothers Ltd Process and apparatus for breaking off lengths of wired glass
US1959545A (en) * 1931-02-03 1934-05-22 Mississippi Glass Co Method of and apparatus for severing wire glass

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE415787A (xx) * 1935-06-01 1900-01-01

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1895779A (en) * 1929-07-10 1933-01-31 Mississippi Glass Co Method and apparatus for cross cutting wire glass
US1930582A (en) * 1930-08-16 1933-10-17 Pittsburgh Plate Glass Co Apparatus for cutting glass sheets
US1959545A (en) * 1931-02-03 1934-05-22 Mississippi Glass Co Method of and apparatus for severing wire glass
US1932149A (en) * 1931-08-06 1933-10-24 Pilkington Brothers Ltd Process and apparatus for breaking off lengths of wired glass

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4049167A (en) * 1974-04-25 1977-09-20 Saint-Gobain Industries Cutting of glass
US4076159A (en) * 1975-10-29 1978-02-28 Pilkington Brothers Limited Breaking flat glass into cullet
US4136807A (en) * 1976-05-26 1979-01-30 Ppg Industries, Inc. Method of opening score lines in glass sheets
US20170334761A1 (en) * 2014-11-19 2017-11-23 Bando Kiko Co., Ltd. Glass plate bend-breaking method and bend-breaking apparatus thereof
US10793464B2 (en) * 2014-11-19 2020-10-06 Bando Kiko Co., Ltd. Glass plate bend-breaking method and bend breaking apparatus thereof

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Publication number Publication date
LU48429A1 (xx) 1965-10-20
BE662651A (xx) 1965-10-18
FR1401341A (fr) 1965-06-04
GB1086219A (en) 1967-10-04
DE1496440B1 (de) 1969-09-04
NL6505033A (xx) 1965-10-22
ES312084A1 (es) 1965-07-01
SE310539B (xx) 1969-05-05

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